Reuters: U.N. climate talks remained “in the balance” after a London meeting among the world’s biggest polluters meant to drive a global deal in Copenhagen in December, Britain said on Monday. “It’s more do-able today than yesterday,” said Britain’s energy and climate secretary Ed Miliband, at the close of the talks. “It remains in the balance in my view.” The London meeting is the latest in a U.S.-instigated major economies forum (MEF) series separate from but meant to bolster momentum …